Seasonal variation of cardiac failure in northern Nigeria

Lancet. 1977 May 14;1(8020):1023-5. doi: 10.1016/s0140-6736(77)91257-0.

Abstract

The number of patients with cardiac failure admitted to hospital in Zaria, Nigeria, month by month during 1972-75 differed highly significantly between the cooler dry months and the hot wet months. The reasons are uncertain, but seasonal changes in blood-pressure and the effects of heat on the circulation and of humidity on the efficiency of sweating may be responsible.

Publication types

  • Comparative Study

MeSH terms

  • Aortic Valve Insufficiency / epidemiology
  • Aortic Valve Insufficiency / etiology
  • Cardiomegaly / epidemiology
  • Cardiomegaly / etiology
  • Female
  • Heart Diseases / etiology*
  • Hospitalization
  • Hot Temperature
  • Humans
  • Humidity
  • Hypertension / epidemiology
  • Hypertension / etiology
  • Male
  • Nigeria
  • Pregnancy
  • Puerperal Disorders / epidemiology
  • Puerperal Disorders / etiology
  • Pulmonary Heart Disease / epidemiology
  • Pulmonary Heart Disease / etiology
  • Rheumatic Heart Disease / epidemiology
  • Seasons*
  • Tropical Climate